Backend Engineer (Retention Team)
Offer summary

(Summary generated by AI based on the full job description)

The project focuses on the Retention platform in iGaming, enhancing player engagement through communication, bonuses, and loyalty programs. Key technologies include Java, Kotlin, Kafka, Spring, JPA, MySQL and microservices architecture. Responsibilities involve building scalable solutions, engaging in technical discussions, collaborating across teams, and owning end-to-end development. Benefits include medical care, training budget and hybrid work arrangement.

you can start ASAP

Backend Engineer (Retention Team)

Company: LeoVegas Group

from: 27 August 2026
to: 26 September 2026
24 300 - 29 400net (+ VAT)/ mth.B2B contract (full-time)
20 200 - 24 400gross/ mth.contract of employment
Salary details
basic salary
Offer parameters
level:mid
working mode:hybrid
Warszawa, Śródmieście
Warszawa, ŚródmieścieKrólewska 16View on map

Requirements

Expected technologies

Java
Spring Boot
JPA
MySQL

Optional technologies

Kafka
OpenAPI
BigQuery
Kubernetes
Claude

Operating system

macOS

Our requirements

  • Minimum of 4+ years of experience working as a back-end developer with Java and/or Kotlin
  • Experience with messaging tools (i.e. Kafka)
  • Experience with microservice architecture
  • You have experience with common Java frameworks such as Spring and JPA
  • MySQL relational databases are not something new for you
  • Experience with AI tools like Claude

Optional

  • Experience with OpenAPI
  • Experience with BigQuery
  • Experience with Kubernetes

Your responsibilities

  • Building scalable, robust and efficient solutions in our full-stack team and ensure the continuous delivery in our microservice architecture.
  • Being involved in technical discussions to challenge, propose, evaluate, and take a guiding and supportive approach to business needs.
  • Working closely with our operational units and stakeholders.
  • Driving your own initiatives with a high-quality mindset.
  • Working within the full chain of development, having end-to-end responsibilities.
  • Collaborative work across the organisation with other domains.
  • Making sure our IT ecology is scalable and ready for upcoming expansions.

About the project

Are you an experienced backend developer with a curious mindset? Do you have a passion for building intuitive, cutting-edge solutions with state-of-the-art technology?
At LeoVegas, we’re on a mission to deliver the greatest iGaming experience to our customers and technology is at the heart of making that happen.
As part of our Retention domain, you’ll play a key role in developing the platforms and features that keep players engaged and coming back for more.
This is a great opportunity to join a fast-moving, flat-structured team as a Senior Backend Engineer, where your work will directly shape value-generating features across our products.
The Retention team powers the organisation with communication capabilities, ranging from indirect and direct communication with the players to a custom-built toolbox that enriches the player journey with bonuses, loyalty programs, and seamless cross-channel experiences. As one of the most crucial parts of the player lifecycle, the Retention domain ensures our players return for new, exciting, and rewarding experiences.
We’re driven by excellence and fuelled by innovation now we’re looking for someone who wants to be part of that journey.
Hybrid work - 3 onsite / 2 remote

This is how we organize our work

This is how we work

in houseyou have influence on the technological solutions appliedyou have influence on the productyou focus on product developmentagile

Team members

backend developerautomated test programmermanual tester

This is how we work on a project

  • Clean Code
  • code review
  • DDD
  • pair programming
  • architect / technical leader support
  • Continuous Deployment
  • Continuous Integration
  • DevOps
  • team-level deployment
  • active monitoring
  • documentation
  • functional tests
  • integration tests
  • test automation
  • unit tests
  • manual tests

JOIN US!

In our pride, we like to empower our teammates to find their roar and run with their wildest ideas. We don’t wait around for things to happen. We pounce and make it happen!
Would you be a good fit for the Leo Pride - give us a roar!
As our company working language is English, we’d like to see your CV in English, please.
Company

What we offer

  • Hybrid work policy (3 days a week from the office)
  • 4 weeks of Workation (T&C apply)
  • Benefits package - 800 PLN net (B2B)/gross (UOP) monthly with access to the cafeteria platform (private medical care, insurances, sports card)
  • Training budget
  • ICAS assistance program that can provide help and guidance during challenging moments.
  • Our office provides complimentary snacks and drinks; on Mondays, we serve complimentary breakfast
  • Team and office social events throughout the year
  • Free parking for bicycles and motorcycles
  • Free gym in the building
  • Equipment: MacBook Pro + smartphone (iPhone 16/17 or Samsung Galaxy S25)

Development opportunities we offer

  • conferences abroad
  • conferences in Poland
  • development budget
  • external training
  • space for experimenting
  • support of IT events
  • technical knowledge exchange within the company

Benefits

  • sharing the costs of sports activities
  • private medical care
  • sharing the costs of professional training & courses
  • life insurance
  • flexible working time
  • fruits
  • integration events
  • corporate gym
  • no dress code
  • coffee / tea
  • drinks
  • leisure zone
  • employee referral program
  • training budget
  • free of charge psychological, financial and legal support

LeoVegas Group

At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of almost 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 19 offices worldwide.
More about us:
  • Careers site: www.leovegasgroup.com/careers
  • LinkedIn: https://www.linkedin.com/company/leovegasgroup
  • Instagram: www.instagram.com/lifeatleo/
  • This is how we work

    Backend Engineer (Retention Team)
    20.2k–24.4k zł / mth. (CoE), 24.3k–29.4k zł / mth. (B2B)
    I apply to:
    LeoVegas Group
    Warszawa, Śródmieście
    Pracodawca zbiera zgłoszenia przez swój system.
    Przejdziesz na zewnętrzny formularz.

    By clicking "Aplikuj" you confirm that you've read and accepted our Terms and Conditions.



    This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

    Need more information?

    • Make sure the body of the offer doesn’t already include what you’re looking for.
    • Ask a question if you need more information you’re interested in.
    • We’ll forward your question to the employer and aim to provide a response within 3 business days.

    Share this offer